According to a source from InformationWeek, recent hirings of mobile and web engineers by Motorola Mobility indicate that they are planning on developing their own web-based mobile operating system that may become an alternative to Android, which currently powers all of their smartphone offerings.
In addition to the source from InformationWeek, a Deutsche Bank analyst was also mentioned in the article saying he had heard that Motorola was working on their own OS.
Motorola announced last year that they would be focusing entirely on Android for their smartphones in the future, but it seems that their idea did not last very long, as this in-house OS will differentiate their offerings and give them two options when looking at what OS they want to put in what device.
When Motorola was asked about the rumors, they made no denials, but stressed that they were commited to the Android platform. However, when a company like Motorola spends the money necessary to create their own OS, it would be crazy to think they didn't have big plans for it in the future.
BoyGeniusReport notes that Motorola was the company who really brought Android into the mainstream with the Droid, thanks to Verizon's big advertising push. They think that it seems more likely that the web-based operating system might be intended to function as a compliment instead of a replacement.
Image from BoyGeniusReport